#include "ros/ros.h"
int main(int argc,char **argv)
{
    ros::init(argc,argv,"hello");
    ros::NodeHandle nh;
    ros::Rate loop_rate(10);

    int count=0;
    while(ros::ok())
    {
        ROS_INFO_STREAM("hello_world"<<count);
        ros::spinOnce();
        loop_rate.sleep();
        count++;
    }
    return 0;
}